Woodward 9905-972 CAN FD Protocol Gateway

Parameter Name	Parameter Value
Product Model	Woodward 9905-972
Manufacturer	Woodward, Inc.
Product Type	CAN FD Protocol Gateway
CAN FD Ports	2x ISO 11898-2 (isolated, 9-pin D-Sub)
Bit Rate	500 kbps – 8 Mbps (configurable)
Payload Size	Up to 64 bytes per frame
Protocol Support	J1939, CANopen FD, NMEA 2000
Message Throughput	25,000+ frames/sec
Isolation	2500V RMS (port-to-port/power)
Power Input	9–36V DC (reverse polarity protected)
Operating Temperature	-40°C to +105°C
Shock Resistance	100g (6ms half-sine)
Certifications	ISO 7637-2, E-Mark, IEC 61373
Configuration	Woodward CANtool FD software
Dimensions	120 x 90 x 40 mm

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Description

Product Overview

The Woodward 9905-972 is an advanced CAN FD (Flexible Data-Rate) gateway module engineered for high-speed data exchange between industrial control systems and next-generation mobile/off-highway equipment. As part of Woodward’s 9900 series communication platform, this ruggedized device enables seamless protocol translation between CAN FD networks (up to 8 Mbps) and legacy J1939/CANopen systems while supporting real-time data streaming for bandwidth-intensive applications. The 9905-972 features dual isolated CAN FD ports with configurable bit rates and hardware-level signal processing, optimizing communication for high-speed control loops in electrified powertrains and autonomous machinery. Its IP67-rated enclosure withstands extreme shock (100g), thermal cycling (-40°C to +105°C), and fluid immersion, making it ideal for construction, agriculture, and defense applications where deterministic communication is critical.

Technical Specifications

Parameter Name	Parameter Value
Product Model	Woodward 9905-972
Manufacturer	Woodward, Inc.
Product Type	CAN FD Protocol Gateway
CAN FD Ports	2x ISO 11898-2 (isolated, 9-pin D-Sub)
Bit Rate	500 kbps – 8 Mbps (configurable)
Payload Size	Up to 64 bytes per frame
Protocol Support	J1939, CANopen FD, NMEA 2000
Message Throughput	25,000+ frames/sec
Isolation	2500V RMS (port-to-port/power)
Power Input	9–36V DC (reverse polarity protected)
Operating Temperature	-40°C to +105°C
Shock Resistance	100g (6ms half-sine)
Certifications	ISO 7637-2, E-Mark, IEC 61373
Configuration	Woodward CANtool FD software
Dimensions	120 x 90 x 40 mm

Main Features and Advantages

High-Speed Data Handling: CAN FD’s 8 Mbps bandwidth enables real-time transmission of sensor fusion data (LiDAR/radar) for autonomous vehicle control, reducing latency by 75% vs. standard CAN.

Adaptive Signal Processing: Onboard FPGA filters and preprocesses raw CAN FD data, offloading host controllers by converting signals to engineering units before transmission.

Cybersecurity Hardening: Hardware-accelerated message authentication (AES-128) and frame counter protection prevent bus injection attacks meeting ISO/SAE 21434 standards.

Woodward 9905-969

Dual-Wire Redundancy: Supports bus mirroring for critical systems with automatic failover if primary bus integrity is compromised.

Backward Compatibility: Translates CAN FD ↔ J1939/CANopen 2.0A/B networks without gateways, enabling phased upgrades of legacy equipment.

Application Areas

Electric Construction Machinery: High-speed control of traction inverters and battery management systems
Autonomous Agriculture: Sensor data aggregation for GPS-guided tractors and implement control
Military Vehicles: Vetronics (Vehicle Electronics) integration for hybrid-drive combat systems
Test Cells: High-resolution data capture for electrified powertrain validation
Mining Trucks: Real-time health monitoring of electric wheel motors
Marine Hybrid Propulsion: Synchronization of diesel gensets and battery packs